--- parser3/src/classes/void.C 2001/10/19 12:43:30 1.12 +++ parser3/src/classes/void.C 2010/10/21 15:25:07 1.48 @@ -1,120 +1,101 @@ /** @file Parser: @b VOID parser class. - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - Author: Alexander Petrosyan (http://design.ru/paf) - - $Id: void.C,v 1.12 2001/10/19 12:43:30 parser Exp $ + Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ +static const char * const IDENT_VOID_C="$Date: 2010/10/21 15:25:07 $"; + #include "classes.h" +#include "pa_vmethod_frame.h" + #include "pa_request.h" -#include "pa_vint.h" -#include "pa_vdouble.h" #include "pa_vvoid.h" #include "pa_sql_connection.h" -// defines +// externs -#define VOID_CLASS_NAME "void" +extern String sql_bind_name; // class -class MVoid : public Methoded { +class MVoid: public Methoded { public: - MVoid(Pool& pool); -public: // Methoded - bool used_directly() { return true; } + MVoid(); }; -// methods - -static void _int(Request& r, const String&, MethodParams *params) { - Pool& pool=r.pool(); - VVoid *vvoid=static_cast(r.self); - r.write_no_lang(*new(pool) VInt(pool, - params->size()==0?vvoid->as_int():params->as_int(0, "default must be int", r))); -} +// void is inherited from string, thus global variable declared in string.C -static void _double(Request& r, const String&, MethodParams *params) { - Pool& pool=r.pool(); - VVoid *vvoid=static_cast(r.self); - r.write_no_lang(*new(pool) VDouble(pool, - params->size()==0?vvoid->as_double():params->as_double(0, "default must be double", r))); -} +// methods #ifndef DOXYGEN -class Void_sql_event_handlers : public SQL_Driver_query_event_handlers { +class Void_sql_event_handlers: public SQL_Driver_query_event_handlers { + const String& statement_string; public: - Void_sql_event_handlers(Pool& apool, const String& astatement_string) : - pool(apool), statement_string(astatement_string) { - } - void add_column(void *ptr, size_t size) { /* ignore */ } - void before_rows() { + Void_sql_event_handlers(const String& astatement_string): statement_string(astatement_string) {} + bool add_column(SQL_Error& /*error*/, const char* /*str*/, size_t /*length*/) { /* ignore */ return false; } + bool before_rows(SQL_Error& error) { // there are some result rows, which is wrong - throw Exception(0, 0, - &statement_string, + error=SQL_Error(PARSER_RUNTIME, + /*statement_string,*/ "must return nothing"); + return true; } - void add_row() { /* never */ } - void add_row_cell(void *ptr, size_t size) { /* never */ } + bool add_row(SQL_Error& /*error*/) { /* never */ return false; } + bool add_row_cell(SQL_Error& /*error*/, const char* /*str*/, size_t /*length*/) { /* never */ return false; } -private: - Pool& pool; - const String& statement_string; }; #endif -static void _sql(Request& r, const String& method_name, MethodParams *params) { - Pool& pool=r.pool(); - if(!r.connection) - throw Exception(0, 0, - &method_name, - "without connect"); - - Value& statement=params->as_junction(0, "statement must be code"); - - Temp_lang temp_lang(r, String::UL_SQL); - const String& statement_string=r.process(statement).as_string(); - const char *statement_cstr= - statement_string.cstr(String::UL_UNSPECIFIED, r.connection); - Void_sql_event_handlers handlers(pool, statement_string); - try { - r.connection->query( - statement_cstr, 0, 0, - handlers); - } catch(const Exception& e) { - // more specific source [were url] - throw Exception(e.type(), e.code(), - &statement_string, - "%s", e.comment()); - } -} - -// constructor +extern int marshal_binds(HashStringValue& hash, SQL_Driver::Placeholder*& placeholders); +extern void unmarshal_bind_updates(HashStringValue& hash, int placeholder_count, SQL_Driver::Placeholder* placeholders); -MVoid::MVoid(Pool& apool) : Methoded(apool) { - set_name(*NEW String(pool(), VOID_CLASS_NAME)); +static void _sql(Request& r, MethodParams& params) { + Value& statement=params.as_junction(0, "statement must be code"); + HashStringValue* bind=0; + if(params.count()>1) { + Value& voptions=params.as_no_junction(1, "options must be hash, not code"); + if(voptions.is_defined() && !voptions.is_string()) + if(HashStringValue* options=voptions.get_hash()) { + int valid_options=0; + if(Value* vbind=options->get(sql_bind_name)) { + valid_options++; + bind=vbind->get_hash(); + } + if(valid_options!=options->count()) + throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); + } else + throw Exception(PARSER_RUNTIME, 0, OPTIONS_MUST_BE_HASH); + } - // ^void.int[] - // ^void.int(default) - add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1); - - // ^void.double[] - // ^void.double(default) - add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1); + SQL_Driver::Placeholder* placeholders=0; + uint placeholders_count=0; + if(bind) + placeholders_count=marshal_binds(*bind, placeholders); + + Temp_lang temp_lang(r, String::L_SQL); + const String& statement_string=r.process_to_string(statement); + const char* statement_cstr=statement_string.untaint_cstr(r.flang, r.connection()); + + Void_sql_event_handlers handlers(statement_string); + r.connection()->query( + statement_cstr, + placeholders_count, placeholders, + 0, SQL_NO_LIMIT, + handlers, + statement_string); - // ^sql[query] - add_native_method("sql", Method::CT_STATIC, _sql, 1, 1); + if(bind) + unmarshal_bind_updates(*bind, placeholders_count, placeholders); } -// global variable - -Methoded *void_class; +// constructor -// creator +MVoid::MVoid(): Methoded("void", string_class) { + // ^void:sql{query} + add_native_method("sql", Method::CT_STATIC, _sql, 1, 2); -Methoded *MVoid_create(Pool& pool) { - return void_class=new(pool) MVoid(pool); + // all other methods are inherinted from empty string }